DC. I will c what I can come up with when I have time. Kinda busy and I'm preparing to do my summer events which start in May and run thru Fall.
May be able to get 4 lanes in 9x19' with the lane spacing u seek. Have to sketch.
I'm not personally in favor of the type Hillclimb u have as it doesn't have a donut which would help equalize lanes. IMO.
One thing to consider about these smaller than commercial type tracks. Slower speeds happen since u don't have the wide turns and longer straights of a commercial tracks. One should consider running lower voltage to make the experience more enjoyable. I am running 11v on the baby blue. And I run the track absolutely DRY. No sticky. Have been using the recipe from SoCal Barney, "love juice" which works excellent for about 5 years now.
My point that I'm trying to make I'd that lane spacing matters more with greater speed potential on any given track. I like tight lane spacing but that's just me
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And Brian. I was contacted last summer from a racing clothing store in FL about a "Suzuka" style track but after I drew several layouts they dropped the idea. Methinks the $5000 delivery fee was over the top.